Impact driver



FIG. 1 is a front/left perspective view of the impact driver.

FIG. 2 is a rear/left perspective view thereof.

FIG. 3 is a front view thereof.

FIG. 4 is a rear view thereof.

FIG. 5 is a right view thereof.

FIG. 6 is a left view thereof.

FIG. 7 is a top view thereof; and,

FIG. 8 is a bottom view thereof.

The portions of the drawings in broken lines form no part of the claimeddesign.

The ornamental design for an impact driver, as shown and described.